of brooklyn



W in L I A' v'e n D, o E BRO OKL Y'1\I,4 o nio.'

Marsman No. vassadafea Fearing- 18, 186s.

Inrnovsns'nr 'IN STEAMQBNGINE. vALvEs.

itin ,Srgrbulr; nient tain 'tigen trtfcrs nmtrn mating' gint at tige smut.

To ALL. wHoMfIr MAncoNcERN; 4 t

. 'Be it known'thatgl; WILLIAM ORD, of'Brooklyn,in" the county of Cuyahoga, and VState, ot Ohio, have invented a new 'and improved Steam-Yalve 4Jand lido hereby declare that tho followingis afull, clear, and.

exactdescription thereof, which will cnable'those: skilledjin 'theart to make and use the same, reference'being had to the accompanying drawings, forrni ngl part ofthis specification.

.This invention relates to a new and. improved construction oisteam-engine valves, whereby they operate Y without sticking from the' unequal cripansion of the parts, and wherehy the' saine are more -easilyadjusted Vand the wear from friction more economically provided agains`t It consists of the coinbination Tof a -valve-stenrwiih cylindrical segments-or valves, 'and twowedges,with an intermediatekey'so arranged, in connection with a set-4 screw, that, by'fo'rciiig` theke-y between the wedges. the segments-0 1` valves a'redrawn together and thepressure against the valve-casing' relieved.VV i Figure 1 is a" central horizontal section of the valve taken in the line yy,.51 'g 2, the 'valv e-box` or steamchestibeing indicated by red lines.A I 'y Figure 2 is a'crosssectionbf the saine, taken in" the line z an, g.,1. Similar letters of lreference.indicate correspondingl iparts; w l

A are two cylindrical segmentsor valves, having,'\on the outside, chambers E for the passage of the' [exhausts steam.. B is the valve-rod or'steni having through it a'slot, S, to receivelthelinks L, the wedges a, and key D. a are the wedges passing through-the'link L in Vthe slot vS,'havin`g their' thinner end toward a set-screw, il)V is thekey attached to the set-screw H', by its thicker-'end in such way that the' screw H will-'turn upon the key D, lmoving it only in and out, 'ar'e exhaust-steam chambers. F, steam-pipe connecting with boiler. G is the lcrank-by which the valveiis turned in the case. LH is' the'fsetscrew. S,` 'springs in theA heads avoperating against thetenon o n thevalve 'All 'earethe heads or disks, Thevalve-stem B has up'cn each end ahead or disk, and is continued on throughrthese heads or disks e in a journal, onwhich it turns, and by which-it is moved or.

rocked by,mean's of crank, l lhe valve-stem B is iatted on' its oppositesides, 'and hasvalsothrough its.' lentire length,- betiveen the heads, the slot S, through which pass, crosswise, the linksL, and lengthwise, the

wedges Va and the key D; Between the heads-or disks .le ar e'-t\v o cylindrical segments or valves,l A, 41Jlac-edop1'1osite to each other and joppsitel tc the V hatt-ed side ofthe 'valve-stem B,prov idjed with a tenen which fits a slot `in the heads or disks e, and byV which it is'kep't in position.v In the: slot in the heads e. are springs', S, which `oiaei'ateron the tenons on the valves-A, intended 'to takeup theV slack when the steam lis not on. s' Said.; valves -A4 are also providedwitha chamberLE, for the escape of the exhaust steam. Said segments or valves A are also provided'with thelinks L, which are eithenapart of the 4valve A, orattached to the saine by sci ews. The linksl of one valve 'lap' by the links of theotherl valve,`and;pass crosswise through the 'slot S in'thevalvefstem B. These link s'L are provided with h'oles which do notqu'ite correspond with eachother, throughwhi'ch pass the wedges a and lthe key D, in' suchaway that when the vkey Dis'forcedinwards'byivthe set-serew-H passing' through the end of the valve-stem B,'th e wedges a', byA thus being forced -apart,` will draw together the' valves 'A, thereby taking o any pressure ofthe saine from' th'evalveicase., The set-'screw isprovidedfwitha'chaui ber, n, to receive the head of .the Ikey D, and nponwhich it turns'.

The arrangement is such also as to admit' of the entire valvelbeing easily adjusted to the fva,lvecase, and provides for the'wearing ofthe segments or val-ves A. by thel friction of the 'same against the-face of the valve;

cas. It' maybe attached to any steam-engine,l and constitutes, asy above described@ cheap, durable, and eliablefA steam-engine valve, Y

I' claim as new, and desire to ysecure byLetters 'Patent- 1. The ccnzbinationof theseg'inents A, having chambersll'with the slottedl'steim'B Vand heads 'e,'snbstan V tial-lyl as set forth.` n

2. In combination' with the above, I cla-im the links ',L, wcdgesaxandkey', D, substantially as specified; 3. Ir combination with.theab'o`ve, I claim thescn'ew Hand springs S, substantially as described.

' i i WILLIAM 

